Add 3/10 and 7/8
3/10 + 7/8 is 47/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
3/10 = 3 × 4/10 × 4 = 12/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
7/8 = 7 × 5/8 × 5 = 35/40 - Add the two like fractions:
12/40 + 35/40 = 12 + 35/40 = 47/40 - So, 3/10 + 7/8 = 47/40
In mixed form: 17/40
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